Images 17: Septomis Prime!

[Norgarth]

I'd go for the 1d12 fire damage.

I mean, 1d12 average 6.5 fire damage with a minimum of 1 and a maximum of 12, but 1d8 shock damage averages 4.5, and 1d4 bludgeoning damage averages 2.5, which makes for 7 average damage, 2 minimum damage and 12 maximum damage.

I'd do the same